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Sarnia is a medium sized city in southwestern Ontario located on the southern shores of Lake Huron. Sarnia is home to a major border crossing connecting to Port Huron, US.
- Sarnia is about 195 km southwest of Toronto.
- About 97,592 people live in Sarnia as of 2021.
- Sarnia is the largest city on Lake Huron and in Lambton County.
Major industries in Sarnia-Lambton include agriculture, petrochemical and engineering, construction and fabrication. One of Sarnia's most famous residents is Chris Hadfield who served as the first Canadian commander of the International Space Station and was the first Canadian to walk in space.